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Research into the relationship between body sway, aim-point fluctuation, and performance in pistol shooting has been inconclusive. The present study reex-amined this relationship on an interindividual basis, as done in previous studies, and via intraindividual analysis, not previously examined. Five elite pistol shooters performed 20 shots similar to competition conditions. For each shot, body-sway parameters and aim-point fluctuation parameters were quantified for the time period 1 s to shot. An AMTI LG6-4 force plate was used to measure body-sway parameters, while a SCATT shooting analysis system was used to measure aim-point fluctuation and shooting performance. Multiple regression analysis indicated that body sway was related to performance for one shooter, aim-point fluctuation was related to performance for three shooters, and body sway was related to aim-point fluctuation for four shooters. These relationships were specific to the individual, with the strength of association and parameters of importance being different for different shooters. However, interindividual analysis indicated that only aim-point fluctuation was related to performance. It was concluded that body sway, aim-point fluctuation, and performance are important in elite level pistol shooting, and performance errors at the elite level are individual-specific. Individual analysis should be a priority when examining elite level sports performance.
The authors are with the Biomechanics Unit, Victoria University, PO Box 14425, MCMC Melbourne 8001, Australia.